if seasonal influenza has a r-nought around two and was stopped with social distancing, and covid-19 wasn't stopped with the same practices in the same places at the same time, it would have to have a much higher r-nought value.
i'm not going to guess. but, it's a bound.
i think this is stretching, though.
i'd like to see more widespread testing for influenza in covid-19 patients.